200541441 五、發明說明（1) 【發明所屬之技術領域】 且特別是有關於一種具有 本發明是有關於/種散熱模組， 消音功能之散熱模、組° 【先前技術】 隨著電腦因應薄变化的市場需求，筆記型電腦機殼内部已 無法預留出足夠的自然對流空間，供散熱設計所需的空 間。尤其在高頻元件（例如中央處理器和繪圖晶片），已麵 面臨相當散熱設計執行上的瓶頸。因此，利用離心式風原 產生強制對流散熱方法已經是現在筆記型電腦散熱機制: 主要架構。 離心式風扇1 0乃是利用螞形外殼曲面漸擴的流道設計（女 第1圖所示），離心式扇葉1 6將氣體動能轉為壓力能，用 得到較佳的靜壓以克服於筆記型電腦内系統流阻高的特 性。然而，空氣18在流道14内與外殼12等機構件摩捧造 t渦流（v〇rtex)，以及離心式扇葉16所驅動之空氣經 ^道14後造成的尾流（Wake flow)，會產生特定高 ^音n此噪音波隨著離心式風们晰產生4 =，經過發熱元件20上的散熱鰭片22時，亦合因产盥 熱鰭片22的摩擦產生更高頻的噪音頻譜。 ' 體” 旦需乂升散熱效能，勢必要土秘士 _ 流場的增加將使風〉所=:力:風量（風速）。然而 &心屬所產生的尾流傅細φ考 噪音與散熱議題上難以取捨的 &動更劇”、、，因而造 垮赤了笹#剂Φ ^的瓶頌。如何解決此一兩難 土兄成了 “型電腦製造商即將面臨的挑戰。 兩難 200541441200541441 V. Description of the invention (1) [Technical field to which the invention belongs] and, in particular, to a heat dissipation module and a group having a heat dissipation module and a noise reduction function according to the present invention. [Previous technology] As computers respond to thin With changing market demands, sufficient natural convection space cannot be reserved inside the notebook computer case for the space required for thermal design. Especially in high-frequency components (such as CPUs and graphics chips), they have faced bottlenecks in the implementation of considerable thermal designs. Therefore, the use of centrifugal wind source to generate forced convection heat dissipation is already the current cooling mechanism of notebook computers: the main architecture. The centrifugal fan 10 is a flow channel design with a curved ant housing (shown in Figure 1). The centrifugal fan blade 16 converts the kinetic energy of the gas into pressure energy. It is used to obtain better static pressure to overcome High flow resistance in a notebook computer. However, the air 18 in the flow channel 14 and the casing 12 and other mechanical parts try to create t vortex (vortex), and the wake flow caused by the air driven by the centrifugal fan 16 passing through the channel 14, A specific high-frequency sound will be generated. This noise wave is generated with the centrifugal wind. 4 = When passing through the heat dissipation fins 22 on the heating element 20, it also generates higher frequency noise due to the friction of the heat generating fins 22. Spectrum. Once the body needs to improve its heat dissipation efficiency, it is necessary to increase the flow field. The increase of the flow field will make the wind> So =: force: wind volume (wind speed). However, the wake flow generated by the & &Amp; Dramatic changes ", which are difficult to choose on the issue of heat dissipation. How to solve this dilemma Tu Xiu became "the challenge that computer manufacturers will face. Dilemma 200541441
五、發明說明（2) 【發明内容】 因此本發明的目的就是在提供 組，用以減低氣流過大所造成 根據本發明之上述目的，提出 組。此包含一散熱鰭片模組及 輸出的氣流，送往散熱鰭片模 量。離心式風扇包含離心式扇 上。風扇外殼固定馬達及離心 組包含一緊鄰於散熱標的物之 外殼，固定散熱鳍片及散熱標 消音功能之凹凸結構。 由上述了知，應用本發明具有 能減低°呆音之振幅外，亦能使 度降低。換言之，使流場穩定 (Hay-stack)的噪音，讓使用； 一種具消音功能之散熱模 的噪音。 一種具有消音功能之散熱桓 一離心式風屬。離心式風扇 組’用以移除鰭片上之熱 葉，固定於—馬達之轉子 式扇葉於其内。散熱鰭片模 散熱鰭片，以及一散熱流道 的物於其中。流道内壁具有 消音功能的散熱模組，除了 衝擊後之尾流分佈不均的程 ，得到較寬頻分佈 f感覺到較佳的聲音品質。 【實施方式】 為了解決噪音與散韵^ 音功能的散熱模組。 熱籍片的散熱模級> 音。5. Description of the invention (2) [Summary of the invention] Therefore, the object of the present invention is to provide a group for reducing the airflow caused by excessive airflow. According to the above-mentioned object of the present invention, a group is proposed. This contains a cooling fin module and the output airflow, which is sent to the cooling fin module. The centrifugal fan consists of a centrifugal fan. The fixed motor and centrifugal unit of the fan casing includes an outer casing which is close to the object of heat radiation, and a concave-convex structure for fixing the heat radiation fins and the heat radiation mark. From the above, it is known that the application of the present invention can reduce the amplitude of the dull sound and also reduce the degree. In other words, the noise that makes the flow field stable (Hay-stack) is allowed to be used; the noise of a heat-dissipating mode with a noise reduction function. A heat-dissipating radiator with a sound-absorbing function. A centrifugal fan. The centrifugal fan set ’is used to remove the hot blades on the fins, and is fixed to the rotor blades of the motor. Radiating fin mold The radiating fin and a cooling channel are in it. The heat dissipation module with noise reduction function on the inner wall of the flow channel, except for the uneven distribution of the wake after the impact, obtains a broader frequency distribution. F Feels better sound quality. [Embodiment] A heat dissipation module to solve the functions of noise and diffuse sound. The thermal mode grade of the heat film > sound.
兩難的議題，本發明提出一種具有消 本發明藉在散熱模組流道内（例如散 設計凹凸不平的結構藉以減少嗓 ί ί Ϊ ^圖’其纟會示依照本發明一較佳實施例的一種具 有消曰功能之散熱模組示意圖。本實施例包含一離心式風The dilemma of the present invention is to provide a method for eliminating noise in the flow channel of a heat sink module (for example, by designing an uneven structure to reduce noise). Schematic diagram of heat dissipation module with elimination function. This embodiment includes a centrifugal fan
200541441200541441
五、發明說明（3) 扇1〇〇及一散熱鑛片模組110。離心式風屬1〇〇且有一離心 式扇葉103。離心式風扇100中的馬達（未繪出）驅動離心式 扇葉103,使空氣由入風口 102進氣，經風扇内的蜗形流道 105,最後由出風口 104出氣。因流體在蝸形流道1〇5内和 管壁產生摩擦，氣流1 06内含了許多特定高頻的窄頻噪 音。散熱鰭片模組110通常固定緊鄰於一發熱元件120(散 熱標的物），使得發熱元件120產生的熱傳導至散熱鰭片 11 2。散熱簿片模組11 0係由鰭片11 2和散熱流道外殼i J 6所 組成。散熱流道外设1 1 6兩側具有固定翼片且 翼片包含固定孔11 9，可使用螺絲鎖固 具有入風口 1 0 8，接收來至離心式風扇 流1 0 6流經散熱鰭片1 1 2，將散熱轉片羽 由出風口 1 1 8吹出。 。散熱鰭片模組1 1 0 1 0 0之氣流1 0 6。氣 1 1 2上的熱量帶走， 清參照第2 A圖，其繪不依照本發明另一較佳實施例的一種 具有消音功能之散熱流道剖面圖。此圖係從第2圖中A — A剖 面線切開之散熱流道剖面圖。本較佳實施例係於散熱鰭 片模組110之流道113内，設計許多凹凸結構122。此凹凸 結構可設置於流道1 1 3的側面内壁或上蓋内壁上，使整個 ml道1 1 3產生類似消音器之幾何結構，不但能消減流體撞 擊流道内壁所產生的結構幅射音，而且能對啥音波產生吸 收或干涉等效用。上述凹凸結構可設置於出風口 i 04的流 道内壁上。此凹凸結構需維持小尺寸設計，以避免增加過 大的流阻為原則。此凹凸結構對於高頻之噪音降低效果 大’其最大衰減量跟流道截面積有關。一般流道設計時，V. Description of the invention (3) Fan 100 and a heat sink ore module 110. The centrifugal fan is 100 and has a centrifugal fan blade 103. A motor (not shown) in the centrifugal fan 100 drives the centrifugal fan blade 103, so that air is taken in from the air inlet 102, passed through the volute channel 105 in the fan, and finally air is taken out from the air outlet 104. Due to the friction between the fluid and the tube wall in the volute channel 105, the air flow 106 contains many narrow-band noise at a specific high frequency. The heat dissipation fin module 110 is usually fixed close to a heat generating element 120 (a target of heat dissipation), so that the heat generated by the heat generating element 120 is conducted to the heat dissipation fins 11 2. The heat sink module 110 is composed of the fins 11 2 and the heat dissipation channel housing i J 6. The cooling runner peripheral 1 1 6 has fixed fins on both sides and the fins include fixing holes 11 9. It can be screwed to have an air inlet 1 0 8 to receive the flow from the centrifugal fan 1 0 6 through the cooling fins 1 1 2. Blow out the cooling rotor feather from the air outlet 1 1 8. . Cooling fin module 1 1 0 1 0 0 air flow 106. The heat on the air 1 1 2 is taken away. Referring to FIG. 2A, it is a cross-sectional view of a heat dissipation flow channel with a noise reduction function according to another preferred embodiment of the present invention. This figure is a cross-sectional view of the heat dissipation channel cut from the A-A section line in Figure 2. This preferred embodiment is designed in the flow channel 113 of the heat dissipation fin module 110, and has a plurality of concave-convex structures 122. This concave-convex structure can be arranged on the side inner wall or the inner wall of the upper cover of the flow channel 1 1 3, so that the entire ml channel 1 1 3 produces a muffler-like geometric structure, which can not only reduce the structural radiation generated by the fluid hitting the inner wall of the flow channel, And can be equivalent to what sound wave absorption or interference. The above-mentioned uneven structure may be provided on the inner wall of the flow channel of the air outlet i 04. This concave-convex structure needs to maintain a small size design to avoid increasing excessive flow resistance as a principle. This concave-convex structure has a large effect of reducing noise at high frequencies, and its maximum attenuation is related to the cross-sectional area of the flow channel. When designing general runners,
200541441 五、發明說明（4) 其流道截面直徑D約為衰減噪音波長的0 . 5〜1. 〇倍 (見第2A圖）。 參照第2 B圖，其搶示依照本發明一較佳實施例的一種具有 消音功能之散熱流道外殼内壁示意圖。散熱流道内的凹凸 結構1 2 2使整個流道產生類似消音器之幾何結構，不但能 消減流體撞擊流道内壁所產生的結構幅射音，而且能對嚼 音波產生吸收或干涉等效用。此散熱流道外殼11 6藉固定 翼片11 7a/117b上的固定孔119，以螺絲鎖固的方式固定於 散熱鰭片模組11 0上。 參照第3A-3D圖，其繪示依照本發明一較佳實施例的一種 具有消音功能之散熱流道的細部結構圖（第2B中的放大部 份124)。在第3A圖中，繪示一種具消音功能之圓形凸出結 構。在第3B圖中，繪示一種具消音功能之圓形凹陷結構。 在第3 C圖中，繪示一種具消音功能之方形凸出結構。在第 3 D圖中，繪示一種具消音功能之方形凹陷結構。 由上述本發明較佳實施例可知，應用本發明具有消音功能 的散熱模組，除了能減低噪音之振幅外，亦能使衝擊後之 尾流分佈不均的程度降低。換言之，本發明可使流場穩 疋’得到較寬頻分佈（Hay-stack)的噪音，讓使用者感覺 到較佳的聲音品質。 _ =然本發明已以一較佳實施例揭露如上，然其並非用以限 ^本發明，任何熟習此技藝者，在不脫離本發明之精神和 範^内’當可作各種之更動與满飾，因此本發明之保護範 圍當視後附之申請專利範圍所界定者為準。200541441 V. Description of the invention (4) The cross section diameter D of the flow channel is about 0.5 to 1.0 times the wavelength of the attenuated noise (see Figure 2A). Referring to FIG. 2B, a schematic diagram of an inner wall of a heat dissipation runner shell with a noise reduction function according to a preferred embodiment of the present invention is shown. The concavo-convex structure in the heat-dissipating flow channel 1 2 2 makes the whole flow channel generate a muffler-like geometric structure, which can not only reduce the structural radiation sound produced by the fluid hitting the inner wall of the flow channel, but also can absorb or interfere with the chewing sound. The heat dissipation runner housing 116 is fixed to the heat dissipation fin module 110 by means of a fixing hole 119 on the fixing fin 11 7a / 117b. Referring to FIGS. 3A to 3D, a detailed structure diagram of a heat dissipation runner having a noise reduction function according to a preferred embodiment of the present invention is shown (enlarged part 124 in 2B). In Fig. 3A, a circular convex structure with a noise reduction function is shown. In FIG. 3B, a circular recessed structure with a noise reduction function is shown. In Fig. 3C, a square convex structure with a noise reduction function is shown. In Fig. 3D, a square recessed structure with a noise reduction function is shown. It can be known from the above-mentioned preferred embodiments of the present invention that, in addition to reducing the amplitude of noise, the heat-dissipating module having a sound-absorbing function of the present invention can also reduce the degree of uneven distribution of wake after impact. In other words, the present invention can stabilize the flow field and obtain a noise with a wide frequency band (Hay-stack), so that users can feel better sound quality. _ = The present invention has been disclosed as above with a preferred embodiment, but it is not intended to limit the present invention. Any person skilled in the art can make various changes and full changes without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope of the appended patent application.
200541441 圖式簡單說明 為讓本發明之上述和其他目的、特德 懂’下文特舉一較佳實施例，並配名 明如下： 第1圖係繪示一種習知的散熱模組示 第2圖係繪示依照本發明一較佳實施 月匕之散熱模組示意圖； 第2 A圖係繪示依照本發明一較佳實 功月b之散熱流道剖面圖； 第圖係繪示依照本發明一較佳 Ϊ之散熱流道外殼内壁示意圖；以j 第3A-3D圖繪示依照本發明一較佳 功旎之散熱流道的細部結構圖。 【元件代表符號簡單說明】 1 0 :離心式風扇 1 2 :外殼 1 4 :蝸形流道 1 6 ·離心式扇葉 1 8 / 2 4 :氣流 2 〇 :發熱元件 2 2 :散熱鰭片 100:離心式風扇 1 0 2 :入風口 1 〇 3 :離心示扇葉 .、和優點能更明顯易 .所附圖式，作詳細說 意圖； 例的一種具有消音功 施例的一種具有消音 色例的一種具有消音功 L 施例的一種具有’/肖音 200541441200541441 Schematic illustration for the above and other purposes of the present invention, Ted understands that a preferred embodiment is given below, and the name is as follows: Figure 1 shows a conventional heat sink module. FIG. 2 is a schematic diagram of a heat dissipation module according to a preferred embodiment of the present invention; FIG. 2A is a sectional view of a heat dissipation channel according to a preferred practical month b of the present invention; FIG. Schematic diagram of the inner wall of a preferred heat dissipation channel of the invention; a detailed structure diagram of the heat dissipation channel according to a preferred function of the invention is shown in Figures 3A-3D. [Simple description of the element representative symbols] 1 0: Centrifugal fan 1 2: Housing 1 4: Spiral flow channel 1 6 · Centrifugal fan blade 1 8/2 4: Air flow 2 〇: Heating element 2 2: Radiating fin 100 : Centrifugal fan 1 02: Air inlet 1 〇3: Centrifugal fan blades, and advantages can be more obvious and easy. The attached drawings are intended to explain in detail; an example has a sound-absorbing function, and a type has a sound-absorbing color Example of a type with muffler work L Example of a type with '/ 肖 音 200541441
圖式簡單說明 104 出風口 105« 蝸形流道 1 0 6 / 11 4 :氣流 108 入風口 110 散熱鰭片模組 112 散熱鰭片 113 流道 116 散熱流道外殼 117a/117b:固定翼片 118 出 風 π 119 固 定 孔 120 發 熱 元 件 D/d 流 道 截 面直徑 122 凹 凸 結 構 124 放 大 部 份Brief description of the drawing 104 Air outlet 105 «Snail channel 1 0 6/11 4: Air flow 108 Air inlet 110 Radiating fin module 112 Radiating fin 113 Flow channel 116 Radiating flow channel housing 117a / 117b: Fixed fin 118 Outlet π 119 Fixing hole 120 Heating element D / d Channel cross-section diameter 122 Concave-convex structure 124 Enlarged part